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View Full Version : What size tire do I mount on a 17" rim?


Miguel
03-29-2005, 06:23 PM
ok, this is actually a 3 part question...

Assuming the car is a 94 325i lowered 1" front and 1.5" back what size summer tire would you mount on a:

A) 17" X 8" rim
B) 17" X 8.5" rim
C) 17" X 9" rim

My main concerns in a tire is
#1 good traction in wet conditions
#2 tread life
#3 cost
#4 low road noise

SickFinga
03-29-2005, 06:32 PM
with your drop and proper offset, 245 will fit easily in the back.

Not really recomendation, but Im looking to get Toyo T1R.
I got T1S(older version) right now and love them.

sloveniaboy
03-29-2005, 06:42 PM
the drop you have sounds like H&R sport and I know 255/40/17 with that setup looks and fits perfect in the back

M50E30
03-29-2005, 07:04 PM
www.tirerack.com

F - 235/40/17
R - 245/40/17

8" - 9.5" wide wheel

Miguel
03-29-2005, 07:10 PM
www.tirerack.com

F - 235/40/17
R - 245/40/17

8" - 9.5" wide wheel
but does that setup account for a drop?

I think im going to play it safe and get 245/40/17 all around... does that sound right?

Im also looking at the pirelle P-Zero's that someone has for sale here... but its $$$$

Whats the best bang for buck wheel out there now? prices?

sloveniaboy
03-29-2005, 07:13 PM
I think im going to play it safe and get 245/40/17 all around...

can't go wrong with that setup, you can rotate your tires and the car handles better than a staggered setup *th-up*

SickFinga
03-29-2005, 07:24 PM
245/40/17 in the front, might be a problem

sloveniaboy
03-29-2005, 07:29 PM
245/40/17 in the front, might be a problem

how so?

RevShoT
03-29-2005, 07:39 PM
how so?

i got 235/40/17 up front and when i turn tight it rubs against the inner frame of the car

thinair
03-29-2005, 07:49 PM
245/40/17 should fit all around on an 8.5" rim, hell, with the proper drop and offset 255/40/17 will fit all around (my dream setup), although my may want to consider a thin spacer up front depending on the wheel offset. I'm at 235/40/17, no rubbing in the rear (even if I remove the springs and push the wheels all the way up), in the front the rub on the chassis. Not a big deal, how often do you drive all the way at the locks anyway.

Basically do this, 8-8.5" rim, go 235/40, 8.5-9" go 245/40 all around

sloveniaboy
03-29-2005, 07:51 PM
i got 235/40/17 up front and when i turn tight it rubs against the inner frame of the car

the drop on the car in question is only 1" and with proper offset, there should be no problem at all

thinair
03-29-2005, 07:54 PM
also, as far as a tire goes, I had the Yoko AVS ES100's, for the money they were awesome, and they lasted me a lot longer then I though. Water evacuation on them is incredible also. I currently have Toyo T1S's, they're the best tire I've tried so far, but they're not the longest lasting tire out there. Performance always comes at a price.

Paul540/m3
03-29-2005, 07:57 PM
I also have T1s's and love them, but if you want best bang for the buck there is no substitute for bridgestone fuzions- by far the cheapest and amazing treadlife

Daydream///M3
03-29-2005, 07:59 PM
one thing you have to consider it the wheel dimensions you have....particularly the offset. I wouldnt think you would need to go past an 8.5 width so 17 x 8 should work fine since it is regarded as a good "inbetween" width that will accomodate many tire widths from 225-255.

Also, make sure the offset is right. an e36 should probably ise soemwhere in the 35-38 ET but soemtimes rims will go to 41 ET which pushes the rim outwards to the edge of the car. In this case, expect such a rubbing issue perhaps especially with 245/40.

Really, the ideal choice would be a 235/40 all around on a 17 x 8 wheel. I doubt you would have to run spacers on the front but make sure the offset is right. If you just have springs, with stock struts, you should be fine. If you have coilovers, you will likely have to to runa spacer up front to clear the strut assembly.

I was told that the E36 96-99 M3's from the factory have a more rolled over rear fender to accomodate the larger staggered wheel setup in the rear whereas a eurospec or 95 M3 (since they came stock with 235/40 at all corners) have a less rolled rear fender. In this regard, being that you have a 325.... you may have a less rolled rear fender mening you may experience rubbing.

In regards to your car being lower, doesnt relly effect whether it will rub as opposed to stock since if you just dropped the car on springs..... the camber stays the same since you cant adjust rear camber in alignment... only the fronts. So, imagine a stock suspension height that oscillates in a bump low enough to the setting you have when you are lowered on the springs. doesnt really change the geometry so dont think that if you have stock height, it will rub cause when you bounce on a bump.... your camber changes everytime.

My opinon is 17 x 8 with 235/40 all around.... that is plenty rubber for a 325 since my M3 with slight power mods with a 235 tire will hold up plenty good.

In terms of queite tires, Iver tried a lot and havent noticed a huge variation in sound although I know that the Michelin Pilot Sports seem to be the quietest as well as perfrom the best from my personal experience.

Hope this helps

RevShoT
03-29-2005, 08:04 PM
the drop on the car in question is only 1" and with proper offset, there should be no problem at all

dosent matter about drop it could be at stock height and would still rub

its when u turn the wheel, if you turn tight (like in a parking lot of something) the tires will rub against the inner side of the wheel well

sloveniaboy
03-29-2005, 08:13 PM
dosent matter about drop it could be at stock height and would still rub

its when u turn the wheel, if you turn tight (like in a parking lot of something) the tires will rub against the inner side of the wheel well

do you rub the fender lip when daily driving?

sillyE36
03-29-2005, 08:37 PM
Ive got a set of M3 LTW polished rims that are 7.5 in the front and 8.5 in the rear. I just mounted them on 225/45/17 (front) & 245/40/17 (rear). The only thing ive noticed is that with people in the back seat the tires rub. This is probably due to the fact that i have a Bilstein and H&R sport suspension kit on the car. So i think im going to have to roll the fenders a little. Any one know a place that knows how to do this? Also if anyone is looking for a good price on a set of Bridgestone FUZION tires i got mine for $667.00 including taxes, ballanced and installed! Im pretty sure that was a good deal so just thought i would let anyone who was looking for tires know. From what i hear from friends who either have them or have had them in the past, they are a pretty good tire with excellent dry and very good wet traction. Anyways, u cant go wrong with a set of tires under 700 bucks! Oh ya, the tire shop is called GLENDALE TIRE. They are on Weston Rd. just north of Eglington. Ask for Danny and remind him of the guy with the dark blue BMW.

low_bmw
03-29-2005, 08:43 PM
when you guys say rubbing in the rear. does it rub the outside of the tire or the inside of the tire? i have M3 staggared rims and ive driven it with the coilovers all the way down, and a bit of the rim is tucking and didnt feel any rubbing in the rear???

HUUUGE
03-29-2005, 08:47 PM
I have 2 Kumho tires for sale. (2 X 255/35/18) Kumho 712 Ecsta Supra

They are brand new, only on the road for 2 weeks. 95+% tread left. Make me an offer.

sillyE36
03-29-2005, 09:09 PM
I could be wrong but im pretty sure the rubbing is happening along the outside of the tire because on the inside there is only the rear shocks and they are too small or thin to obstruct the space the wheel travels up and down. Low_BMW, did you offset your wheels in-wards at all? All i know is theres rubbing in the rear. I also asked Senio (t.o. bimmer) because his car is slammed on 18's and he said he offseted the wheels. I was also thinking, besides rolling out the fenders, has anyone ever machined the HUB of the wheel on the inside or the rim so that the rim sits inside the fender a bit more?

RevShoT
03-29-2005, 09:20 PM
do you rub the fender lip when daily driving?
nope never rubbed the fender

SickFinga
03-29-2005, 09:52 PM
Right now, with my drop, stock wheels with 5mm spacer and 225 tires, they barely fit.
When I drive daily it never rub, except when frame twists.(turning on the steep driveway, 3 wheel on the ground, 1 on the hill) It very slightly rubs on the fender.
Also, it slight rubbed when I was autox'ing, but never durign a turn.

Thats why I said 245 might be a problem, I know i got a 5mm spacer and a 2" drop, but still 245 would be hard to fit.

P.S. remember guys, coupes are wider than sedan's. so coupes can fit slightly wider tires

RevShoT
03-29-2005, 09:55 PM
P.S. remember guys, coupes are wider than sedan's. so coupes can fit slightly wider tires

r u sure its not the other way around... everything is a tad smaller on the coupe then sedan... hood, fender, tail lights, trunk, spoiler, ect...

Daydream///M3
03-29-2005, 11:16 PM
Right now, with my drop, stock wheels with 5mm spacer and 225 tires, they barely fit.


Hey vlad, do you mean the fronts are rubbing sometimes along the front fender. You are running on the stock ltw 225/45 17 right?

SickFinga
03-30-2005, 12:03 AM
r u sure its not the other way around... everything is a tad smaller on the coupe then sedan... hood, fender, tail lights, trunk, spoiler, ect...

Sedans are more narrow and taller than coupe


on the coupe, hood and fenders are much longer
tail lights, longer, but shorter

SickFinga
03-30-2005, 12:03 AM
Hey vlad, do you mean the fronts are rubbing sometimes along the front fender. You are running on the stock ltw 225/45 17 right?

yes

Daydream///M3
03-30-2005, 12:47 AM
ok vlad, i see the diff between mine and your suspension setup. Since we are running the same coilovers, my drop on the front is about 1.5 inch.

But, I reversed my front strut plates from one side to the other to achieve a greater neg camber. I run a 10 mm spacer with a 225/45 17 tire and I dont rub at all. even with 225/45-18

Mystikal
03-30-2005, 12:56 AM
Also, make sure the offset is right. an e36 should probably ise soemwhere in the 35-38 ET but soemtimes rims will go to 41 ET which pushes the rim outwards to the edge of the car. In this case, expect such a rubbing issue perhaps especially with 245/40.

Really, the ideal choice would be a 235/40 all around on a 17 x 8 wheel. I doubt you would have to run spacers on the front but make sure the offset is right. If you just have springs, with stock struts, you should be fine. If you have coilovers, you will likely have to to runa spacer up front to clear the strut assembly.

A few things off here. ET41 would be more inside the fenders, not the other way around.

And some coilovers such as GC's actually take up less space than the stock perches, so more clearance is gained on the inside.

Daydream///M3
03-30-2005, 09:25 AM
thanks mystikal, i knew i had soem numbers mixed up, it was one or the othre

Miguel
04-01-2005, 11:48 AM
will I be ok with 225/40 17 ?
will that fit 17 X 8 through 17 X 9 ?

thinair
04-01-2005, 12:31 PM
will I be ok with 225/40 17 ?
will that fit 17 X 8 through 17 X 9 ?

225 is on the narrow side from a 9" wide rim. I had 235's on a 9" rims and they were starting to stretch, meaing the the rim was sticking out past the time. It was pretty useless. 245 is the narrowest I'd go for a 9".

Miguel
04-01-2005, 12:38 PM
what about on a 17 X 8.5" rim?

HooliGaN*
04-01-2005, 01:12 PM
id go 235 atleast for an 8.5

thinair
04-01-2005, 01:23 PM
235 is a perfect size for an 8.5.

What are your plans???

Miguel
04-04-2005, 11:17 AM
235 is a perfect size for an 8.5.

What are your plans???
my plans? daily driving lol... my car is a slushbox daily driver so no aut-X'ing for me.
I just need tires that last with little to no road noise.

thinair
04-04-2005, 12:20 PM
my plans? daily driving lol... my car is a slushbox daily driver so no aut-X'ing for me.
I just need tires that last with little to no road noise.
So why even consider really wide rims and tires???

Plus tramlining sucks on anything 235 and wider.

Miguel
04-04-2005, 12:31 PM
So why even consider really wide rims and tires???

Plus tramlining sucks on anything 235 and wider.
I've already got the rims now I just need tires.

I got quoted $660 for Bridgestone Fuzion ZRIs mounted & balanced... good?
235/40/17 up front and 245/40/17 in the back.
rims are 17 X 8.5.

thinair
04-04-2005, 12:50 PM
I've already got the rims now I just need tires.

I got quoted $660 for Bridgestone Fuzion ZRIs mounted & balanced... good?
235/40/17 up front and 245/40/17 in the back.
rims are 17 X 8.5.

Why staggar if they rim size is the same??? Maybe I value tire rotation more then more people.

Miguel
04-04-2005, 01:26 PM
Why staggar if they rim size is the same??? Maybe I value tire rotation more then more people.
so what size do you recommend all around? 235?
what if I later switch to 17 X 9 or 17 X 8 wheels?

thinair
04-04-2005, 01:34 PM
so what size do you recommend all around? 235?
what if I later switch to 17 X 9 or 17 X 8 wheels?

235/40's will fit fine on a 17x8, that is actually what I run. 235/40's will also fit a 9" (even a 9.5"). I just checked, the Fuzions in that size are good for 8-9.5" rims

Miguel
04-04-2005, 02:23 PM
235/40's will fit fine on a 17x8, that is actually what I run. 235/40's will also fit a 9" (even a 9.5"). I just checked, the Fuzions in that size are good for 8-9.5" rims
How are Fuzions though in general?

Do they grip in the rain or are they crappy tires that are gonna blow on me leaving me stranded while horny schoolgirls point and laugh at me?

BMW_7
04-04-2005, 06:15 PM
I had 235/40 tire on a 17.5x17 95 BMW M3 wheel, I believe offset was 35. But I rubbed in the front when I turned the wheel all the way, AND it was on stock suspension! I found that out when I took the tires off, you could see a silver line on the wheel well maybe 4 inches

I suggest going with 225/45/17

T-spec
04-04-2005, 11:04 PM
ok, this is actually a 3 part question...

Assuming the car is a 94 325i lowered 1" front and 1.5" back what size summer tire would you mount on a:

A) 17" X 8" rim
B) 17" X 8.5" rim
C) 17" X 9" rim

My main concerns in a tire is
#1 good traction in wet conditions
#2 tread life
#3 cost
#4 low road noise

335/25/ 17's would be sweet! :P